Home / 3,485.28-4,806.36-3,230.76

Finding the Fourth Proportional to 3,485.28, 4,806.36 and 3,230.76

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Solution

The fourth proportional to 3,485.28, 4,806.36 and 3,230.76 is: 4,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.28 : 4,806.36 = 3,230.76 : x
  2. Step 2: Convert to fraction form
    3,485.28/4,806.36 = 3,230.76/x
  3. Step 3: Cross multiply
    3,485.28x = 4,806.36 × 3,230.76
  4. Step 4: Simplify right side
    3,485.28x = 15,528,195.63
  5. Step 5: Solve for x
    x = 15,528,195.63/3,485.28
  6. Step 6: Final answer
    x = 4,455.37

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.